import sys
import pygame
from pygame.sprite import Group

from settings import Settings
from ship import Ship
from alien import Alien
import game_functions as gf
from game_stats import GameStats
from button import Button
from scoreboard import Scoreboard

def run_game():
    # 初始化游戏并创建一个屏幕对象
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(ai_settings.screen_width, ai_settings.screen_height)
    pygame.display.set_caption("Alien Invasion")

    play_button = Button(ai_settings, screen, "Play")

    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()
    sb = Scoreboard(ai_settings, screen, stats)
    # 创建一组外星人
    gf.create_fleet(ai_settings, screen, ship, aliens)

    stats = GameStats(ai_settings)

    # 创建一个外星人
    # alien = Alien(ai_settings, screen)
    # 开始游戏主循环
    while True:
        # 监视键盘和鼠标事件
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets)
        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen, stats, sb, ship, aliens, bullets)
            gf.update_aliens(ai_settings, stats, sb, screen, ship, aliens, bullets)
        # 每次循环时都重绘屏幕
        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets, play_button)

run_game()

